Furnace



No. 622,5l7. Patented Apr. 4, 1899.

W. MGCLAVEi FURNACE.

(Application mea' Jul 2, 1898.)

(N0 Model.)

II Shaets-$haet WITNESSES TNE NORRXS PETERS co, Pnorlrumcw WASHiNOTON. uc.

No. 622,5!7. Patented Apr. 4, I899.

W. McCLAVE.

FURNACE.

(Application filed July 2, 1898.)

(No Mod-ell) ll Sheets-Sheet 2.

INVENTOR n4: hams PETERS co, PHOTO-LITHO., wwumsron. n c

Patented Apr. 4, 1899. W. McCLAVE.

F U R N A C E (Application filed. July 2, 1898.)

ll Sheets-Sheetii.

'(No Model.)

Patented Apr. 4, I899. W. McCLAVE.

F U R N A G E.

(Application filed July 2, 1898.)

ll Sheets-Sheet 4 (No Model.)

INVENTOR "rm; NORRIS vzrzas (20., PHOYO-LITHO,. WASHINGTON. 01c.

Patented Ap r. 4, I899. w

W. MOCLAVE.

No. 622,5l7.

F U R N A C E (Application med July 2, 1898.)

ll Shaets-Sheef 5.

(No mouel.

WITNESSES Patented Apr. 4, I899. W. McCLAVE.

No. 622,5l7.

F U R N A C E (Application filed July 2, 1898.)

ll Sheets-Sheet 6.

(No Model.)

INVENTOR m: NORRIS PETERS co puonmumon WASHINGTON n cy WlTNESS FatentedApr. {1, I899.

W. MGCLAVE.

F U B NAG E.

(Application filed July 2, 1898.)

ll Sheets-Sheet 8.

(No Model.)

WITNESSE- fu: maems PETERS co.. Pnoro-umu, WASHINGTON, DV 2.

Patented Apr. 4, I899. W. McGLAVE.

No. 622,5l7.

F U R N A G E.

(Application filed July 2, 1898.)

ll Sheets-Sheet 9.

(No Model.)

INVENTR WITNESSES m: Nonms vzrzns ca, mow-urns, WASNINOTON, n. c..

Patented Apr. 4, W99. W. MGBLAVE.

FURNACE.

(Application filed July 8, 1898.)

H Sheeta8heei II].

(No Model.)

INVENTOR m: NORRIS PEYERS cm" PHQTO-LITHD., WASHINGYON, n c.

Patented Apr. 4, I899.

W. McCLAVj.

F U R N AC E.

(Application filed July 2, 1898.)

ll Sheets-Sheet ll.

NVENIOR llnrrn STATES PATENT lVILLIAM MCCLAVE, OF SORANTON,PENNSYLVANIA.

FURNACE.

SPECIFICATION forming part of Letters Patent No. 622,517, dated April 4,1899.

Application filed July 2, 1898. Serial No. 685,069. (No model.)

To aZZ whom it may concern.-

Be it known that 1, WILLIAM MOCLAVE, a citizen of the United States,residingat Scranton, in the county of Lackawanna and State ofPennsylvania, have invented certain new and useful Improvements inFurnaces; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to improvements in furnaces, and more particularlyto that class of furnaces which employ inclined rocking grates forfeeding fuel downwardly and which are employed in connection with amechan ical stoker.

.My invention is not only well adapted for use upon any furnace usingrocking bars for producing a feed movement, but is also particularlywell adapted for use upon a grate having rocking bars adapted to bethrown back to cut out the clinkers and ashes, as well as feed the fueldownwardly, as described and shown in my application for a patent filedon May 10, 1898, Serial No. 680,272.

It consists in providing an inclined grate having rocking grate-barswith adjustable I means for rocking the same, whereby some of the barsmay be rocked more than others for causing a more rapid feed of the fuelupon one part of the grate than upon another.

It also consists in providing an inclined grate having rocking bars withadjustable means for rocking the same, said means comprising a rockingframe and movable journal-blocks carried by the said frame, said journal-blocks being connected witli'the gratebars, and means foradjusting the journalblocks to regulate the throw of the gratebars withrespect to each other.

It also consists in providing an inclined grate having rockinggrate-bars with means for rocking the said bars and means connected withthe said rocking means whereby the throw of the grate-bars may beadjusted from the outside of the furnace and while the same is in use.

It further consists in providing a furnace with an inclined grate havingrocking gratebars with means for rocking the said bars, comprising anoscillating frame, movable journ al-b1ocks mounted upon the said frame,

when feeding the fuel.

of parts, as will be hereinafter more fully do scribed and claimed.

In the accompanying drawings, Figure 1 represents a verticallongitudinal section through a portion of a furnace provided with agrate constructed in accordance with my invention. Fig. 2 represents asimilar View, but showing the grate-bars as rocked forward Fig. 3 is asimilar view to Figs. 1 and 2, but showing the gratebars rocked to therear for cutting out clinkers and ashes. Fig. trepresents a frontelevation of the rocking frame employed in ac tuating the rockinggrate-bars. Fig. 5 represents an end elevation of the same. Fig. 6 is asimilar view to Fig. 4, but showing'the movable j ournal-blocks arrangedso as to rock the grate-bars with a uniform movement. Fig. 7 representsa detail transverse sectional View through the rocking frame,illustrating the curvature of the bars which carry the movable journal-blocks. Fig. 8 represents a vertical transverse section throughthe central portion of the rocking frame. Fig. 9 represents a horizontalsectional View upon the line a b of Fig. 4. Fig. 10 represents a detailside elevation of one of the movable journal-blocks. Fig. 11 representsa detail horizontal cross-section through the same. Fig. 12 represents adetail sectional view through a portion of the front of the furnace,showing the means for operating the mech anism carried by the rockingframe from the outside of the furnace. Fig. 13 represents a frontelevation of the said operating means and showing an indicator workingin conjunction therewith. Fig.1 at represents a front elevation of arocking frame,showin g the manner of forming the same when more of thegrate-bars are operated singly. Fig. 15 represents a detail longitudinalsection through the grate, showing the manner of connecting trated. Fig.18 represents a detail view of a connecting-bar, showing the manner ofattaching the same to the rocking frame and to' the grate-bars. Fig.19-represents a modification of the same. Fig. 20 represents a detailview showing the manner of connecting the rods to the rocking grate-barswhen the said rods are round. Fig. 21 represents a similar view showingthe manner of connecting the said rods when they are rectangular inshape. Fig. 22 represents a detail perspective view showing the mannerof connecting the rod which operates the oscillating frame to the saidframe; and Fig. 23 represents a view of a portion of the front of afurnace, showing the indicating mechanism upon the front of the same.

In using inclined grates in furnaces in connection with stokers toassist in the feed of the fuel I find that it is advisable to employ ameans for regulating the throw of the gratebars so that their movementsmaybe graded from top to bottom with respect to each other. In feedingfuel down an inclined grate the fuel moves more easily when it firstreaches the grate because it is comparatively unburned and loose; but asit proceeds down the gratesurface it becomes more compactly heldtogether and filled with clinkers until at the lower end, especiallywith some fuels, it is likely to form cakes or slabs of clinkers. Forthis reason it is far better to have the grate so constructed that themovement of the feeding-bars can be made greater at the lower end of thegrate than at the top. The intermediate portions of the grate-surfaceshould also beconstructed soas to give the grate-bars agradually-increasing movement from the top to the bottom to correspondmore nearly with the clinker forming or caking tendency of theiire. Agrate of this kind should be formed also, to produce the best result, sothat it can be caused to operate uniformly throughout when firststarting a fire or when the feed has been stopped and it is desired toget new fuel down to the lower portion of the grate again. I haveconstructed my improved grate with a view to accomplish all these ends,and in addition have so constructed the same that it may be easilyoperated from the outside of the front of the furnace. Thus the gratecan be adjusted while the furnace is in use and at any time so as tograde the movement of the grate-bars to a greater or lessextent, as itmaybe found desirable. The grate bars are also constructed and connectedup so that they can be rocked backwardly to cut out clinkers and ashesfrom the under portion of the fuel when itis found necessary to morethoroughly break up the clinker. This action may also be graded so as toproduce a greater cut-out movement at the bottom than at the top. 1 inthe drawings represents a grate; 2, carrier-bars forming a part of thesame; 3, rocking grate-bars, and 4 a rocking or oscillating frame foractuating the said bars.

While my improved means for rocking the grate-bars may be applied tofurnaces employing a single section or row of grate-bars, yetI prefer touse the same with a grate-surface composed of two sections or rows. Ofcourse it will be apparent that the parts may be so arranged as tooperate a greater hum- V ber of sections, if desired. The carrier-bars 2of the grate 1 are mounted, as illustrated in Figs. 1, 2, and 3 of thedrawings, in the furnace upon an incline, the lower end of the saidcarrier-bars resting upon the bridgewall, as at 5, and the upper endengaging 7 supports formed upon the front 6 of the furnace. The rockinggrate-bars 3 are j ournaled at their ends in the carrier-bars 2, thesaid journals being at a suitable point with respect to the fire-bearingsurface of the bar to permit of the same being rocked to give thedesired feed. The grate-bars 3 are provided with actuating-journals, asat 7, which are adapted to be engaged by any suitable means for rockingthe grate-bars. In order to producea graded movementin the bars from oneend to the other, it is necessary to rock one or more of the said barsseparately from the others. While each of the bars may be connectedseparately and operated independently of each other, yet for ordinarypurposes I find that it is desirable to connect the lower bars by twos,while a greater number of the top bars may well be joined for producingthe desired result. As shown in Figs. 1, 2, and 3 of the drawings, thelower bars 3 3 are joined by means of short connecting-bars, as 8 8,while a longer connecting-bar 9 joins the four upper grate-bars. Theseconnecting-bars 8 and 9 maybe pivotallysecured to the journals '7 in anydesired manner. The connecting-bars 8 and 9 are pivotally secured to theoperating-rods, as 10, said rods extending toward the front of thefurnace and engaging the rocking or oscillating frame 4. The rods 10 arepivotally connected to the bars 8 and 9, so that they will allow for themovement of the grate-bars.

In order to produce a graded movement in the rocking of the grate-bars,it is necessary to connect each set of bars in such a manner that thethrow of some of the bars will be more than that of the others. For thispurpose I employ the rocking frame 4, which is pivoted upon brackets, as11, secured to the inner face of the furnace-front 6. As seen in thedrawings, the frame 4., is provided with journals, as 12 12, whichengage suitable bearings in the brackets 11, whereby it is pivotallysupported in place. A greater part of the frame 4 extends upwardly fromthe journals 12. The frame 4: has been illustrated in the drawings,except in Fig. 17 as adapted to rock the grate-bars of two sections of afurnace-grate, the two sides or wings of the said frame beingconstructed alike. comprises approximately triangular portions, as 1313, connected at their inner ends to each other by means of cross-bars,as 14 14. Each of the wings 13 of the frame 4 is provided withverticallyarranged guide bars, as 15 15, which are adapted to supportand guide movable journal-blocks, as 16. The operatingrods are connectedwith the movable journal-blocks 16, and because of the comparativemovement of the parts the guide-bars are slightly curved, the concavedside being toward the grate. This permits of the ad justment of themovable journal-blocks 16 upon the said guides 15 without any bindingaction between the parts and without chang ing the throw of the rods intheir adjusted positions. The inner movable bearing 16 is connected withthe upper four grate-bars,

. and therefore, the connecting-rod 10 being shorter than the otherconnecting-rods,the inner guide is constructed with a greater curve thanthe outer ones to correspond with the lesser radius of the aredescribed. The curvature of the guides 15 Will only be very slight, andwhile it is much better to make them curved, yet the grate can beoperated if the said guides were made straight, so that I contemplateusing them in this way if it is found desirable, all of which is withinthe scope of the present invention. I prefer to have the lower bar ofeach grate-section so connected with the rocking frame 4 that it willalways have the normal throw communicated by the said frame, and forthis purpose the bar 10, which connects the same with the frame, isjournaled directly to the outside of the said frame, as seen at 17, amovable journal-block not being used at this point. In order to move thejournal-blocks 16 uniformly with relation to each other and at acorresponding decreasing or diminishing ratio, I mount a pivoted bar, as18, upon a journal on each of the wings 13 of the frame 4, each of saidbars 18 extending toward the central portion of the frame and beingconnected by means of links with each of the movable journal-blocks 16.The links 20 are provided with eyes in their upper ends which engagejournals, as 21, formed upon the outer faces of the movablejournal-blocks 16. The lower ends of the said links 20 are preferablyprovided with j ournal-studs, as 22, which engage correspondingapertures formed in the links 18. It will be apparent that when one ofthe said journal-blocks 16 is moved upon its guide 15 the otherjournal-blocks 16 will be correspondingly moved upon their guides. Thelength of the links 20 and the pivotal points of the bars 18 are soarranged that when the inner journal-blocks 16 are moved to a point upona level with the journals 17 all of The frame 4' the journal-blocks 16will be upon the same sequently will all have the same throw when thesaid frame is rocked nponits journals. It will thus transpire that allof the grate-bars having the same actuating movement will be rockeduniformly throughout the length of the grate. When it is desired to rockthe upper portion of the grate-surface less than the lower portion, thelinks 18 are lowered, when the movement of the grate-bars will be gradedfrom top to bottom to the extent that may be desired. The movablejournal-blocks 16 are each preferably formed of a hollowbody portion, as23, which may be put in position upon the guide 15 when the block 24 isinserted between the sides of the said body port-ion and secured inplace by means of screw-bolts, as clearly seen in Figs. 9, 10, and 11 ofthe drawin gs. This holds the said j ournal-blocks movably upon the saidguides. The journals proper are formed, as at 25, upon the oppositesides of the said hollow body portion 23 of each of said journal-blocks16. The journals 21, as heretofore described, are located upon one faceof the said body portion. Cotter-pins may be employed to hold the links20 upon the journals 21 and the studs 22 in the apertures of the links18. The journals 25 are preferably two in number upon each movable journal-bloclz, the connecting-rods 10 be ing preferably bifurcated toengage the same, as will be hereinafter more fully described. The innermovable journal-blocks 16, however, are each constructed with a single journal, as 26, upon one side of its frame in order not to interfere withmeans for raising and lowering the said movable journal-blocks, whichwill now be described.

The inner portions of the wings 13 13 are provided with vertical slots,as at 27, which are adapted to accommodate and guide vertically-movingracks, as 28. These racks are formed with elongated slots or recesses attheir upper ends, as at 29, which engage similar journals, as 30, formedupon the sides of the inner movable journal-blocks 16. The journals arepreferably provided with antifriction-rings, as 31, to produce lessfriction in the frame 1. The racks 28 mesh with or en gage gear wheelsor pinions, as 32 The pinions 32 33 are mounted upon studs secured to across-bar 34E,forminga part of the frame a. The pinion meshes with anactuating-pinion 35, which is secured upon the inner end of anactuating-shaft, as 36, extending through the front 6 of the furnace. 3yturning the shaft 36 the pinion will be caused to communicate movementto the pinions 32 33, whereby the racks 23 will be moved up and down inthe slots 27, and thus adjust the positions of the movablejournal-blocks 16 in the frame 1. As the frame4 has a rocking movementupon its journals 12 and as the pinion IIC 35 is mounted upon thestationary shaft, the pinion 33 has a rocking movement with respect tothe said pinion 35. Because of this movement I find it desirable toconstruct the pinions 35 and 33 with teeth having their edges curved, asclearly shown in Fig. 12 of the drawings. By this construction a propershape will be given to the teeth so that the pinion 33 may rock withrespect to the pinion 35 Without binding or friction. In order that thismay be so, I find that it is necessary to mount the said pinions so thattheir coinciding pitch-lines will be upon a line drawn through the axisof oscillation of the frame 4. By arranging the pinions in this mannerthe least movement between the same can be secured.

In order to operate the shaft 36 from the outside of the furnace, itsouter end extends through the front 6 and is squared or other wiseadapted to receive an operating crank or handle, as 37, the inner end ofthe said shaft being supported inside the furnacefront by means of asuitable bracket, as 38. The crank or operating-handle is preferablyremovable from the shaft and is only placed thereon when it is desiredto operate the mechanism for changing the position of the movablejournal-blocks. As seen in Fig. 23, the shaft 36 projects through thefurnacefront just to one side of the slide 6, which closes the slotthrough which the operatingrod 51 for rocking the frame 4 passes. Theslide 6 is constructed as described and shown in my previous applicationabove referred to, but instead of being arranged upon the central lineof the furnace is preferably moved a little to one side to accommodatethe shaft 36. As seen in Figs. 12 and 23, the shaft may pass through theguide-casing 6 of the slide in order to gain a still broader bearing inthe front. In order to lock the shaft 36 against movement after it hasbeen adjusted, I arrange a latch-lever, as 40, upon the front of thefurnace, preferably pivoting it to the guide-casing 6 as seen in Fig.23, the said latch or lever being provided with a projection or lug, as41, which is adapted to engage corresponding recesses 42, formed upon awheel, as 43, also rigidly secured to the shaft 36, just inside of thecrank or handle 37. Then it is desired to move the shaft 36, the latchlever may be thrown to one side and held out of engagement temporarilyby means of a lug, as 44, mounted upon the front of the furnace. Thecrank or handle 37 may be then turned to produce the proper adjustmentof the movable journals,when the latch lever can be disengaged from thelug 44 and brought'into engagement With'the recesses 42 to lock theparts in their adjusted position. Inasmuch as all of the mechanismexcept the portion for operating the same by hand is inside the furnace,it is desirable to have a suitable indicator to show the party operatingthe grate the exact position to which the movable journal-blocks havebeen adjusted. To

accomplish this result, I secure a pinion, as 45, to the shaft 36, justinside the front 6, and pivot the pinion 46 by a tap-bolt so as to meshwith the said pinion 45, the said pinion 46 meshing with the teeth of asegment or quadrant 46. The shaft 47", upon which the segment 46 ismounted, extends through the front 6 and carries a pointer or indicator47. This pointer is preferably provided with a slot, through whichindications or words on the furnace-front may be seen. The number ofteeth in the segment 46 may be so regulated with respect to the teeth ofthe pinion that the position of the grates can be told at an instant byglancing at the said pointer 47. The position of the movablejournal-blocks may be indicated by arrows, as at 48 and 49, and by theWords Leveland Down. When the pointer 47 is brought opposite the arrow48, the word Level will appear through the pointer 47 and the movablejournal-blocks 16 will all be level and the grate will haveauniformmovement throughout. When the indicator 47 is brought opposite the arrow49, the word Down will appear through the slot in the pointer and themovable journal-blocks will be at their lowest positions and thegratebars will have a graded action from top to bottom. Of course theparts may be locked at any intermediate point for grading the movementof the grate-bars more or less, as may be desired. It will be apparent,of course, that the pointer 47 may travel over a graduated scale uponthe front 6 to communicate more accurately the position of the parts andto determine the intermediate points more perfectly.

In order to rock the frame 4 upon its pivotal point, a journal isformed, as at 50, upon the cross-bar of the frame 4. The'said journal isadapted to be engaged by theinner end of an actuating-rod, as '51. Thisbar is preferably provided with a flattened end portion, as seen at 52in Fig. 22, to the opposite sides of which may be clamped flat angularpieces, as 53, having journal-bearings, as 54, formed therein. The saidjournal-bearings after being placed over the ends of the journal 50 maybe clamped in place upon the flattened portion 52 of the rod 51 by meansof suitable bolts. The rod 51 extends through the front of the furnaceand is secured to an actuating member 55 of a grate -rocking mechanismmounted on the front of the furnace, said member 55 being secured to thepower-shaft rods 10.

or less extent both to give a greaterfeed or' to throw the grate-barsback for cutting out the clinkers and ashes, as clearly seen in the saidprevious application.

While any suitable means may be employed for securing theconnecting-rods to the gratebars and to the rocking frame, yet I preferto construct these rods as illustrated in Fig. 18. In this constructionthe rod is preferably made round and is provided with an eye, as 63,which is adapted to engage a stud 6i, secured upon the connecting-bars 8and 9. A cotter-pin may be employed to hold the eye upon the said stud.The other end of the rod 10 is preferably screwthreaded and engages acorrespondingly-screwthreaded recess formed in the end of a hookedengaging piece 65. The said engaging piece 65 is preferably formed withbifurcated hooked end p'ortions,.as 66, which are adapted to engage thejournals 25 upon each side of the casings Sometimes it is preferable tomake the conneeting'rods of flat or rectangular metal, in which case thesocket formed in the hooked engaging portion 65 is preferably maderectangular to receive the same, and a pin, as 67, may be passed throughthe socket and the end of the rod to hold the same in place, as seen inFig. 19. The bifurcated hooked end portions 60 are preferably held inplace upon the journals by means of pins or bolts, as 68. (Seen in Fig.15.) In order to cause all the rods 10 to move almost in the same plane,the studs (34: upon the connecting-bars 8 and 9 are preferably droppedlower and lower toward the top of the grate. Thus, as seen in Figs. 1,2, and 3, the stud Get upon the lowest bar 8 is near its upper edge,while the stud on the one next in front of it is dropped to the centralportion thereof, and the two above this are dropped still lower. Thisproduces a more uniform movement in the connecting In order toaccommodate the inner movable journal-blocks to the connection of thesame with the actuating-racks, each movable journal-bloek to which therod is conneeted is formed with its journal-stud upon one side only,said stud being made longer than the studs upon the other journal-bloeks.

. In this instance the connecting-rod instead of having a bifurcated endportion is bent or offset, so as to pass to one side of the movablejournal-block, and carries a single engaging hook for engaging thejournal. A cotter-pin may be used to hold the said hook in place uponthe said journal.

As previously intimated, the grate-bars may be each connected separatelywith the operating rocking frame. As illustrated in Figs. 14: and 15 ofthe drawings, the rocking frame 57 may be so constructed as toaccommodate a greater number of movable journalblocks, as 5 8. For thispurpose a corresponding number of guide-bars 59 are added to the frame57, and the journal-blocks are all connected to thelinks 60 by means ofthelinks 61.

Racks (32 are also employed and operated in the same manner to raise andlower the movable journal-blocks 58, as heretofore described withrespect to the racks 28.

, Where the connecting-rods, as 69, are connected directly to thegrate-bars, as seen in Fig. 15, the manner of connecting the same to theconnecting-bars is preferably a little different to that previouslydescribed in con nection with the connecting-bars 10. As seen in Figs.15, 20, and 21, the connecting means preferably consists of a yoke, as70, passed over the journal on the lower edge of the grate-bar andreceives a spacing-block upon the other side of the said journal forcompletel y inclosin g the same. The rod 69 passes through the yoke orclip 70 and the block 71 and is secured therein by means of wedges orpins 72 72, which are driven into suitable openings formed in the rods69. Where the rods are round, as shown in Fig. 20, the pins arepreferably inserted on a vertical line; but where the rod is fiat, asseen at 73 in Fig. 21, the wedges, as 74, are inserted horizontally. Bythis construction it will be seen that the connection with the bars canreach up to the journal, so as not to interfere with the rockingmovement of the said grate-bars. It will be noted also by reference toFig. 15 that the clips 70 may be lengthened as they approach the upperend of the grate to drop the lower ends of the rods 69 to a suitablelevel.

with respect to the rocking frame. XVhile I show the upper fourgrate-bars connected by means of a single connectingbar, yet it will beapparent that each of the upper grate-bars could be connected separatelyin the same manner as the lower ones by leaving a wider dead-plate topermit the rocking frame to be moved farther away from the grate-barswith=- out departing from the spirit of myinvention. I find, hovever, inpractice that it is just as well to connect the upper three or four barstogether, as shown in the drawings.

As seen in Fig. 17 of the drawings, the rocking frame may be adapted tomove only the grate-bars of a single gratesection. In this instance theframe 75 may be constructed with onlyonewing portion forcarryingthemovable journal-blocks 76. The frame 75 is pivoted in the samemanner, as heretofore described, upon the journal-blocks 77 and carriesthe movable journals upon vertical guides 7 8. A rack 79 is employed tomove the parts; but only one pinion, as S0, is needed, and as only oneset of grate-bars are being operated the pinion 80 of course wouldreceive its movement from the pinion 81 in the same manner as heretoforedescribed with respect to the pinion 35. Then the frame is construct-edin this manner, one of the journals 77 is preferably braced with respectto the rest of the frame by means of a diagonal brace-rod, as 82. Inusing a rocking grate of this character there may be times when it isdesirable for a short period to com mu nieate an increasing rockingmovement to the upper bars of the grate in addition to the adjustmentheretofore described. This may occur, forinstance,when

the fires have been bankedthat is, when the feed to the grate has beenstopped and the grate has been allowed to feed the fuel on the same, soas to permit air to pass above it at the upper end of the grate, and thefeeding of the grate is then stopped, and in starting up the fire againit is desirable to get a sufficient quantity of fresh fuel upon theupper portion of the grate to fill up the gap formed in banking. Inorder to enable the movement of the grate to be so graded that the upperbars will move faster than the lower ones, I contemplate constructingthe rocking frame as shown in Fig. 16 of the drawings, in which wingportions 83 are extended to a greater height near their inner ends thanheretofore described and shown. This permits of the guides 84: beingmade longer and enables me to raise the movable journalblocks 85 to ahigher point than was necessary for the movement heretofore described.

Racks, as 86, should be made a little longer to permit of this extendedmovement, and the slots or recesses in the same, which engage the innermovable j ournal-blocks 85, are made a little longer to permit of agreater range of movement between the said inner journal-blocks and thesaid racks. The other parts of the frame are constructed and arranged,preferably, in the same manner as heretofore shown and described, andthe racks receive their movement from the pinions and the outsideoperating mechanism in precisely the same way. As seen in Fig. 16, whenthe parts are actuated so as to raise the movable journal-blocks 85 theycan be carried to graduated points above the level of the point ofuniform feed. The inner journal-blocks 85, being connected to the upperbars of the furnace, will 'of course receive a greater throw than thelower bars, which are connected to the fixed bearings in the frame 83.Of course it will be apparent that these bearings can be moved to thelower part of the frame in thesame manner as heretofore described'andshown for producing the desired uniform or graded movement of therocking grate-bars.

A suitable rocking cut-outbar, as 87, is located at the lower end of thegrate to bridge and control the space between the lower end of thegrate-bars and the bridge-wall of the furnace. This rocking cut-out ispreferably constructed in the same manner as the cutout shown in myprevious application above referred to. I do not claim its constructionand operation in the present application, and it therefore needs nofurther description here.

It will be very evident from the above description that I am enabled bymy invention to produce an inclined grate for feeding fuel which is ofnovel construction and possesses great utility and adaptability for thepurpose of feeding fuel. It will be noted that its parts are very simpleand yet strong, and that by its construction the grate may be adjustedfor a uniform feed or for a graduated feed at any time while there is afire in the furnace, and that all the parts can be adjusted 'to a nicetyfor producing any amount of rock or graduation that may be desired forproperly feeding the fuel to suit the exact circumstances and conditionof the fire. My improved construction is also very superior in that itform movement throughout or may have a graduatedmovement from one end tothe other.

2. In a furnace, the combination with an inclined grate having rockinggrate-bars, of a rocking frame for actuating the same, adjustable meansconnecting said frame with the said bars, the construction being suchthat the frame will be adapted to rock the said bars uniformly or with agraduated movement with respect to each other, substantially as described.

3. In a furnace, the combination with an inclined grate having rockinggrate-bars, of a rocking frame adapted to actuate the same, rodsconnecting the said frame with the bars and means for adj ustabl yconnecting said rods to the said frame, the construction being suchthat'upon rocking the frame a graduated or uniform movement will begiven to the different portions of the said grate, substantially asdescribed.

4. In afurnace, the combination with an inclined grate having rockinggrate-bars, of a rocking frame adapted to actuate the same, the saidframe carrying movable journals, means for adjusting the movablejournals, rods connecting the journals with portions of the grate, andmeans for rocking the frame, the construction being such that themovable journals may communicate a uniform or graduated movement to thegrate-bars according to their position in the frame, substantially asdescribed.

5. Ina furnace, the combination with an inclined grate having rockinggrate-bars, of a frame pivotally mounted in the furnace, said framehaving guide-bars, movable journalblocks adapted to move upon the saidguidebars, means for adjusting said blocks, connecting rods interposedbetween said movable journal-blocks and the grate-bars, and means forrocking the frame whereby the rocking bars may be rocked simultaneouslyto a uniform extent or have a graduated motion with respect to eachother, substantially as described.

6. In a furnace, the combination with an inclined grate having rockinggrate-bars, of a rocking frame having guide bars formed therein, movablejournals mounted uponthe guide-bars, means for connecting the movablejournals to a single member or arm, and

means for operating the said arm or member, whereby the position of themovable journals may be regulated with respect to each other, theconstruction being such that the different portions of the grate-barswill be adapted to move uniformly or with a graduated action,substantially as described.

7. In a furnace, the combination with an illclined grate having rockinggrate-bars, of means for rocking the said bars comprising a rockingframe pivotally mounted in the furnace, movable journal-blocks mountedin the said frame, means for connecting the journal-blocks, and meansfor operating the said ournals, and connecting means, whereby all thejournal-blocks will be moved toregulate the throw of the grate-bars,substantially as described.

8. In afurnace, the combination with an inclined grate having rockinggrate-bars, of means for rocking the same comprising a rocking frame,movablej ournals mounted therein, a rack for raising or lowering thesaid journals, a pinion for engaging the said rack, and meansforoperating the said pinion whereby the journals are adjusted to impartdifferent movements to the grate-bars, substantially as described.

9. In a furnace, the combination with an inclined grate having rockinggrate-bars, of a frame for operating the same, said frame havin gsupporting-journals, guides formed in the said frame, movablejournal-blocks moving upon the'said guides, a pivoted arm mounted uponthe said frame, links connecting said arms with the said journal-blocks, and means for raising and lowering said links andjournal-blocks whereby each one has a graduated movement relative to theother, and means for connecting said movable journal-blocks withdifferent grate-bars, the construction being such that the grate-barswill be moved according to the position of the said movable journals,substantially as described.

10. In a furnace, the combination with an inclined grate and rockinggrate-bars, of a pivoted frame for moving the same, movable journalsmounted in the said frame, racks for raising or lowerin g the saidjournals, pinions engaging the said racks, an actuating-pinion foroperating the said pinions, a shaft for rotating the saidactuatingrpinion, said shaft being adapted to extend through the frontof the furnace, and operating means secured to the outer ends of thesaid shaft, the construc tion being such that the movable journals maybe adjusted in the frame from the outside of the furnace to regulate thethrow of the grate-bars, substantially as described.

rocking the hand operating mechanism to its different adjustedpositions, substantially as described.

12. In a furnace, the combination withan inclined grate and rockinggrate-bars, of a rocking frame for operating the same, means forconnecting the grate-bars with the said frame, a shaft for adjusting thesaid conneetions to impart different movements to the parts of thegrates, operating means upon the outer end of the said shaft, and anindicator mounted on the front of the furnace and actuated by theoperating means, whereby the position of the grate-bars may bedetermined and adjusted Without inspecting the interior of the furnace,substantially as described.

13. In a furnace, the combination with an inclined grate and rockinggrate-bars, of a frame for actuating the same, guides formed in the saidframes, movable journal-blocks mounted on the said guides, each of saidj our nal-blocks comprising a hollow casing adapted to inclose the saidguides, and j ourn al-stud s mounted thereon, means for connecting saidj ournal-studs with the rocking grate-bars, and means for adjusting saidjournal-blocks, substantially as described.

14. In a furnace, the combination with an inclined grate and rockinggrate-bars, of a rocking frame for operating the same, movable journal-blocks mounted in the said frame and connected with the saidgrate-bars, said journal-blocks comprising hollow casings adapted toreceive guides formed in the frame, studs formed upon the faces of thesaid bearings and means for connecting all the studs with a pivoted arm,the construction being such that when one casing is moved all the othercasings will be moved relatively, substantially as described.

15. In a furnace, the combination with an inclined grate and rockinggrate-bars, of a rocking frame for actuating the same, movable journalsmounted in the said frame connected with said grate-bars, racksconnected with the said journals, pinions for operating the saidracks,and a stationary pinion adapted to actuate the said pinions on therocking frame, said stationary pinion and the one with which it meshesbeing provided with teeth having curved edges, whereby the frame mayrock with respect to the actuating-pinion without throwing the parts outof engagement, substantially as described.

16. In a furnace, the combination with an inclined grate and rockinggratc-bars, of a rocking frame for actuating the same, rods connectingsaid frame with separate gratebars, movable journals mounted upon thesaid frame, means for adjusting said journals, said rods being providedwith engaging end portions having bifurcated hooks for engaging themovable journals and means for connectin g the other ends of the saidrods to the gratebars, substantially as described.

17. In an inclined feeding-grate, the combination with rockinggrate-bars, of a rocking frame pivotally mounted with respect to thesaid grate, movable journals mounted 'in said frame, means forconnecting said journals with single bars, and means for adjusting thejournals so as to give the bars a uniform or graduated movement,substantially as described.

18. In an inclined feeding-grate for furnaces, the combination withrocking gratebars, of means for rocking the same comprising a frameadapted to impart a graduated or uniform feed to the said bars, rodsconnecting said bars with the said frame, yokes or clips adapted toengage journals upon the said bars and having openings to receive the'ends of the operating-rods,and spacing-blocks interposed between theends of the said clips and wedges for holding the connecting-rods in thesaid clips and spacing-blocks, substantially as described.

19. In a furnace, the combination with an inclined grate and rockinggrate-bars, of a rocking frame cooperating with the same,movablejournals mounted in the said frame and connected with separategrate-bars, racks connected with said movable journals adapted to raiseor lower the same, said racks being guided in slots in the said rockingframe, the upper end of the said rack being provided with an elongatedslot adapted to receive a journal formed upon one of the movablejournals, and pinions for actuating the said racks, the constructionbeing such that the racks may adjust themselves with relation to thesaid journals, substantially as described.

20. In a furnace, the combination with an inclined grate and rockinggrate-bars, of a rocking frame connected therewith for operating thesame, curved guides mounted in the said frame, movable journal-blocksmounted upon the said guides, and means for raising or lowering the saidmovable j ournal-blocks for regulating the throw of the grate-bars,'

substantially as described.

21. In a furnace, the combination with an inclined grate and rockinggrate-bars, of a rocking frame connected with different gratebars forimparting the same or different movements to the same, means for rockingthe said frame, said means comprising a rod having a bifurcatedinnerend, said rod passing through the front of the furnace, a journalupon the frame for engaging the said rod, and means outside the furnacefor reciprocating the said actuating-rod, substantially as described.

22. In a furnace, the combination with an inclined grate, and rockinggrate-bars, of a rocking frame for actuating the same, movable journalsmounted in the said frame, means for bringing the said journals upon thesame line to impart a uniform movement to the grate-bars, and means forlowering the said journals to graduate the movement of the saidgrate-bars more or less with respect to eachother, substantially asdescribed.

In a furnace, the combination with an inclined grate and rockinggrate-bars, of a rocking frame for actuating the same, movable journalsmount'ed in the said frame, means for moving the said journals upon alevel and above and below the same, the construction being such thatwhen the journals ing outside the furnace for adjusting the movablejournals in the frame, and an indicating means also arranged outside thefurnace, whereby the position of the journals on the said frame can bedetermined from the exterior of the furnace, substantially as described.

25. In a furnace, the combination with an inclined grate and rockinggrate-bars, of a rocking frame for actuating the same, movable journalsmounted in the said frame, pinions for raising or lowering the saidjournals, and an actuating-pinion engaging one of said pinions formoving it, the said pinionwhich engages the said actuating-pinion havingteeth with curved edges to permit of the rocking of the frame withoutinterfering with the engagement of the said pinions with theactuating-pinion, substantially as described.

26. In a furnace, the combination with an inclined grate and rockinggrate-bars, of a rocking frame for actuating the same, movable journalsmounted in the said frame, means for moving the said journals, theconstruction being such that when the journals are brought upon a level,they will communicate a uniform movement to the said gratebars, whenthey are moved below the level they will impart a graduated feed to thesaid bars with the maximum movement at the bottom, and when they aremoved above the level, they will impart a graduated feed to the saidbars with the maximum movement at the top, substantially as described.

27. In a furnace, the combination with an inclined grate, principallymade up of rocking grate-bars, of means for rocking the said grate-barsfor producing a feeding movement 1 and a cut-out movement, means foradjusting the said rocking means, whereby the gratebars may be given auniform movement throughout or may have a graduated action,

and means connectingthe said rocking means front of the furnace, andgearing connecting with an actuating-shaft outside the front of saidindicator with said shaft whereby it is the furnace, substantially asdescribed. 7 adapted to indicate the position of the parts 28. In afurnace, the combination with an inside the furnace, substantially asdescribed. 5 inclined grate and rocking grate-bars, of a In testimonywhereof I hereunto affix my 15' rocking frame for operating the same,means signature in presence of two Witnesses.

connecting the said bars and frame, a shaft WILLIAM MOOLAVE. foradjusting the said connections to impart Witnesses: the same ordifferent movements to the parts E. T. FENWIGK,

[o of the grates, an indicatormounted on the LUTHER L. APPLE.

